This Sept. 25, 2010 photo shows the Olympic rings on the approach to Olympiastadion Berlin, where U.S. gold medalist Jesse Owens won four gold medals during the 1936 Summer Olympics in Berlin. Germany hosted two notorious games: The 1936 Berlin Olympics, which Adolf Hitler tried to turn into a showcase of Aryan supremacy, and the 1972 Munich Olympics, married by a hostage crisis that left 11 Israelis dead. (Associeted Press)